Research On Key Technologies Of Entity Search And Access Control Based On Handle Identification

The Internet of Things(IOT)establishes the connections between objects and objects,people and objects,and between networks and objects,which is an important infrastructure by providing ubiquitous information services such as information perception,data transmission,and intelligent processing,etc.Based on this facility,the Internet of Things search provides users with personalized services through accurate,real-time discovery of various types of information in the Internet of Things entities.However,because that information belongs to individual or corresponding institutions,which is closely related to those subject interests and has significant "ownership" and privacy features.Therefore,the Internet of Things search should meet the “limited disclosure” principle.It is a significant research issue that keeping sensitive data is staying in local,but can be discovered and controlled access by authorized user.Consequently,this paper has launched research on cross-domain security search and access control in the Internet of Things.The main work and innovations are summarized as follows:(1)For cross-domain search in the Internet of Things by keeping sensitive data is staying in local,cross-domain search method in the Internet of Things is proposed.Establish the reverse association between multi-domain object property and Handle by separating object's nonsensitive properties and sensitive properties,non-sensitive properties bind with handle then share out,and ensure searching sensitive data in local.Implementing entity discovery and addressing by using non-sensitive keywords for searching and using handle resolve system,which ensure sensitive data is staying in local.(2)In order to provide a way for controlled access to sensitive data and solve the problem that Origin Handle system authentic granularity cannot meet the needs of multi-domain and multi-property access control,the sensitive data access control method for cross-domain Handle resolving is proposed.This method implements fine-grained access control of cross-domain searching data,by providing the data owner with a fine-grained access control mechanism based on attribute base encryption,at the same time,the data authenticity and integrity in the attribute base encryption process has been ensured,by the authentication method based on identification encryption mechanism which is designed using the Handle.(3)Based on the above two parts of research,the IOT search system based on Handle is designed and implemented.Verifying system availability by testing system functions such as cross-domain search,access control,service monitoring function,and analyzing response time and QPS.